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Finding the Fourth Proportional to 6,508.80, 9,741.36 and 5,415.36

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Solution

The fourth proportional to 6,508.80, 9,741.36 and 5,415.36 is: 8,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,508.80 : 9,741.36 = 5,415.36 : x
  2. Step 2: Convert to fraction form
    6,508.80/9,741.36 = 5,415.36/x
  3. Step 3: Cross multiply
    6,508.80x = 9,741.36 × 5,415.36
  4. Step 4: Simplify right side
    6,508.80x = 52,752,971.29
  5. Step 5: Solve for x
    x = 52,752,971.29/6,508.80
  6. Step 6: Final answer
    x = 8,104.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.